[importer] Set schema at initialization time for Column
[importer] Set schema at initialization time for Column

bloomberg/cartodb,splashblot/dronedb,nyimbi/cartodb,nuxcode/cartodb,codeandtheory/cartodb,thorncp/cartodb,codeandtheory/cartodb,DigitalCoder/cartodb,dbirchak/cartodb,codeandtheory/cartodb,future-analytics/cartodb,future-analytics/cartodb,DigitalCoder/cartodb,future-analytics/cartodb,thorncp/cartodb,UCL-ShippingGroup/cartodb-1,nyimbi/cartodb,bloomberg/cartodb,nuxcode/cartodb,raquel-ucl/cartodb,UCL-ShippingGroup/cartodb-1,CartoDB/cartodb,dbirchak/cartodb,nuxcode/cartodb,DigitalCoder/cartodb,DigitalCoder/cartodb,dbirchak/cartodb,future-analytics/cartodb,future-analytics/cartodb,UCL-ShippingGroup/cartodb-1,CartoDB/cartodb,nuxcode/cartodb,dbirchak/cartodb,nuxcode/cartodb,splashblot/dronedb,CartoDB/cartodb,raquel-ucl/cartodb,codeandtheory/cartodb,splashblot/dronedb,UCL-ShippingGroup/cartodb-1,bloomberg/cartodb,DigitalCoder/cartodb,bloomberg/cartodb,bloomberg/cartodb,CartoDB/cartodb,dbirchak/cartodb,nyimbi/cartodb,codeandtheory/cartodb,nyimbi/cartodb,raquel-ucl/cartodb,UCL-ShippingGroup/cartodb-1,raquel-ucl/cartodb,thorncp/cartodb,splashblot/dronedb,nyimbi/cartodb,thorncp/cartodb,CartoDB/cartodb,splashblot/dronedb,thorncp/cartodb,raquel-ucl/cartodb